Finding the Fourth Proportional to 74,400.17, 102,672.97 and 40,408.97
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Solution
The fourth proportional to 74,400.17, 102,672.97 and 40,408.97 is: 55,764.78
Step by Step Solution
- Step 1: Write the proportion equation
74,400.17 : 102,672.97 = 40,408.97 : x - Step 2: Convert to fraction form
74,400.17/102,672.97 = 40,408.97/x - Step 3: Cross multiply
74,400.17x = 102,672.97 × 40,408.97 - Step 4: Simplify right side
74,400.17x = 4,148,908,964.54 - Step 5: Solve for x
x = 4,148,908,964.54/74,400.17 - Step 6: Final answer
x = 55,764.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.